D defs.my
Entry 1 sense Webster, 1913

Downthrow

· Down·throw · IPA
01 n. The sudden drop or depression of the strata of rocks on one side of a fault. See Throw, n.
  1. 1.
    The sudden drop or depression of the strata of rocks on one side of a fault. See Throw, n.(Geol.) See: Throw